\\[-1.8ex] Soil Heterogeneity & $-$2.994$^{***}$ & $-$3.098$^{***}$ & $-$2.952$^{***}$ & $-$2.947$^{***}$ & $-$2.453$^{***}$ & $-$1.788$^{**}$ \\ 
  & (0.800) & (0.774) & (0.792) & (0.782) & (0.754) & (0.782) \\ 
& & & & \\ \hline \\[-1.8ex]  \\[-1.8ex] 
Dependent Variable Mean & 67.82 & 63.52 & 64.49 & 61.26 & 67.12 & 57.11 \\ 
Dependent Variable SD & 6.30 & 6.15 & 6.53 & 6.56 & 5.08 & 4.31 \\ 
Observations & 23,437 & 23,437 & 23,434 & 23,430 & 22,594 & 23,437 \\ 
R$^{2}$ & 0.548 & 0.514 & 0.524 & 0.497 & 0.559 & 0.437 \\ 
